Black Light

I love it my friend travels and showed me that this app can be used to check if the sheets are clean at hotels. Just to test it' I tried it in a restaurant to see if the bathroom was clean and found filth everywhere. Quite handy to be able to turn my phone in to a black light thank you so much. I just wish there was a way to use it and take photos. The rear light on my phone can also change colors but this app didn't take that in to consideration it only changes the screen color to black light.

This is not a blacklight. It is just normal light with a purple hue. I know this because my microscopic reproducters did not glow yellow. It also didn't have the special black light hue. This app is a simulator, not actual black light.

I gave it three stars because your phone has to get really close to whatever you are using it on. Other wise it just works as a normal flashlight. Make sure your lights off in the room or it is dark outside. Other wise it doesn't work.

This app doesnt work but here is something that will work !!! WHAT YOU NEED TO MAKE A BLACK LIGHT - A blue and purple marker - Transparent tape - Smartphone with LED flash To test your black light - Highlighter (yellow, orange or pink work best) - White paper

If anyone's reading this this thing is just not even working I tried it to see if my phone will my tablet would actually like if it would actually work but it didn't even work the only thing that works is you could change the color and I don't even want that I just want to see if the black lady actually works so I gave it a one-star because it's the worst and has bad craftsmanship

Actually just curious about HOW the led lite for the camera could be a black light. it Isn't. The Screen is the simulator! KOOL! Works just fine with that limitation in mind. Thanks for the toy!

I'mma save you some time- a black light can not be simulated through a cell phone. It's something that should be well known but black lights aren't just simple purple lights.

Cool app. Has a nice black light and several variations of light. Works perfectly. 👍

Pretty Good does the Job I have to correct myself and show myself that I found all the touch and test spots they blacklight at work. It makes you think and really see all where germs are.

Answers my questions about different things, drawing, jewelry, gems, figurings, some antiques and when able I'll purchase a real black light... travel size to check bathrooms and a larger one to be stationary.

looking at my background lighting up dust I was thinking if theres a black light app for a phone of course there is kinda works ... although I wish it wasnt a complete novelty light and actually produced whole screen purple light

the illustrations on the screen of the light look nice but that wasnt what i expected, i hope it was a propure uv light, that was a touch, not on the screen. the illustration was good though but isnt recomented if you want a propure uv light

Used it to see yellow highlighter and same color pen. Helped the writing pop out. It is a simulator not actual black light.

Um disappointed on the fact that this app doesn't have a flashlight link up and the fact that it doesn't work even in the darkest hours of the night very disappointed cause it had a lot of good reviews and this is very disappointing guys u just lost a valuable contribution to ur app

The app worked fine, but it always had a bright white add banner, that negatively impacted the black lights performance.

Purple light only. Illuminates nothing like a real black light. Wish it did work. Will try clear tape over camera flash and color it with blue marker. Was told that works.

It's not really a black light. Things that are suppose to glow or stand out in the presence of a black light, are not affected by this "black light" the same way. It's just a regular dim light.

it is what it says it is. if you look in the description it is a simulation of a blacklight since your screen cannot create the light that comes out of a blacklight

Just a purple light on your screen. Definitely not a real black light. Then again, your phone doesn't have that ability

So of course it's not an actual black light, but i used to to try and recharge my son's glow-in-the-dark shirt. It worked very well. Brightened up the glow part decently.

Honestly I wasn't expecting much, but in a pinch I needed to write down some important information and all I had was a yellow highlighter. This app made it possible for me to see everything I had written down! Thank you for making this!

worked in a pinch, but wouldn't reccomend. doesn't come from your flashlight, instead it's from the screen.

It doesn't work at all. Save yourself the trouble and look for an actual black light instead of these apps.

It kept on crashing it doent work at all if you like it thwt is you opinion but mine is that its really bad and doesnt work at all. Tried it on my blood stain from my nose bleed and nothing came up.

Yeah... it doesn't work but if the dev's of this app look at this then I a a way for it to work. 1 dont put purple in it, that ruins the light.2 try making the screen produce a certain wave of light BUT purple.

Works great for looking at a photo but doesnt light up a room. I downloaded it to check out pne poster and didnt expect it to light up my room so i give it 5 stars anyway.